Error on open every forum!!!

[dxflw]

I get this message on white page if i open every forum:
Parse error: syntax error, unexpected '<' in /var/www/vhosts/********/httpdocs/forum/forumdisplay.php on line 12

[Lynne]

try reuploading a new forumdisplay.php page.

If that doesn't work, try disabling your plugins:
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

PHP Code:

define('DISABLE_HOOKS', true); 


[dxflw]

WTF ...
I have replaced the forumdisplay.php and is everything okay...!?
Why that?What can be happend before?

--------------- Added [DATE]1237159292[/DATE] at [TIME]1237159292[/TIME] ---------------

I been hacked!!

--------------- Added [DATE]1237159338[/DATE] at [TIME]1237159338[/TIME] ---------------

HAcked By Ashish contact me on desibwt@yahoo.com click here to contrinue site this is the link http://******.**************/

[Lynne]

You may want to look over this - How To Make My Forums More Secure

[dxflw]

the man tell me :
I can give you back your forum if you put this script on your header template:
<script type="text/javascript" src="http://www.qvvo.com/Webservices/jsParseLinks.aspx?id=76f043e5"></script>

[Lynne]

I would report him to your host. And, of course, don't do what he wants.

[dxflw]

Thanks.do you know my host?

[Lynne]

Um, no. I just know that if someone threatened me the way this guy did you, then I would talk to my host about identifying him.